Method eval_with_old

nodedb-query/src/expr/eval.rs:70–76

Evaluate with access to both NEW and OLD documents, used by TRANSITION CHECK predicates. `Column(name)` resolves against `new_doc`; `OldColumn(name)` resolves against `old_doc`.

(&self, new_doc: &Value, old_doc: &Value)

    /// TRANSITION CHECK predicates. `Column(name)` resolves against
    /// `new_doc`; `OldColumn(name)` resolves against `old_doc`.
    pub fn eval_with_old(&self, new_doc: &Value, old_doc: &Value) -> Value {
        self.eval_scope(&RowScope {
            new_doc,
            old_doc: Some(old_doc),
            excluded_doc: None,
        })
    }

    /// Evaluate with access to the incoming `EXCLUDED.*` row, used by
    /// `INSERT ... ON CONFLICT DO UPDATE`. `Column(name)` resolves